Shielding gases

[Shield Arc]

This was in the 1970s, the shop dealt with a little independent called Oxygen Sales. Fast forward 20+ years then here comes Air Gas who bought up just about all the little independents.

I remember around that time Air Liquid had some stores in the bigger cities. Maybe Oxygen Sales got their gases from them? :confused3:

 

[ericher69]

Yes it was!
Hey did you get my PM about the V350-Pro?

SA- yes I did thank you!

 

[Shield Arc]

With everything included, and even if it is the construction model that sounds like a really good deal. :thumbsup:

 

[Mark @ Everlast]

Pulse Trumps Spray any day. You do need about 90% argon to get to spray but remember the old 75/22/3 Argon Co2 with 2-3% O2..You could get close to true spray with a smaller machine ( ESAB 250 ) but you suffer from adding Oxides to your welds. Some still believe in it. Praxair called it Stargon. Old School gas.

What do you mean "close"?lol. I have one (ESAB MM250), and it sprays easily with plenty to spare. It's a true spray without a single bobble on .035. (first picture on left.) It's actually 270 amps. I use C-18. I also use it for short circuit transfer with the Everlast i mig 160. It has plenty of character, but none of the spatter or costly cleanup time. (last two pictures)

 

[Bday]

What do you mean "close"?lol. I have one (ESAB MM250), and it sprays easily with plenty to spare. It's a true spray without a single bobble on .035. (first picture on left.) It's actually 270 amps. I use C-18. I also use it for short circuit transfer with the Everlast i mig 160. It has plenty of character, but none of the spatter or costly cleanup time. (last two pictures)

Nice looking beads! My miller 252 will get hot enough for spray transfer also.

 

[Bday]

Nice looking beads! My miller 252 will get hot enough for spray transfer also.

Hey Mark may be a dumb question, but what's the c18.

 

[Mark @ Everlast]

Hey Mark may be a dumb question, but what's the c18.

In some areas of the country it's hard to find. It's a proprietary blend from Airgas. It's 82% Ar, 18% CO2. It gives you the ability to spray, but doesn't make the puddle so wet from too high of an argon content that the puddle is completely uncontrollable. I love it. I fabricate sawmills and some farm equipment on the side, and it reduces my cleanup time enough that the mild extra cost pays for its self quite easily. It yields beautiful, "shiny" welds...without the ugly scaly look of the oxidized CO2 welds.

 

[yomax4]

What do you mean "close"?lol. I have one (ESAB MM250), and it sprays easily with plenty to spare. It's a true spray without a single bobble on .035. (first picture on left.) It's actually 270 amps. I use C-18. I also use it for short circuit transfer with the Everlast i mig 160. It has plenty of character, but none of the spatter or costly cleanup time. (last two pictures)

I meant Close to Spray with Stargon Gas. Never said your 250 amp units didn't have enough " power ". I've owned several old L-Tec Airco and Esab 250 Mig Masters back in the day. I had the 1st factory prototype Esab 251 power supply with a 4HD feeder. Also a 300I Integrated soft key inverter as well as a stand alone 300i power supply with 4HD. I know the capabilities.

 

[henryswe]

When I was running a welding business I had a free source for argon so I bought 2 flow meters and hooked them up together with one bottle of argon and one bottle of co2. I found I can mix what I wanted and found I could weld thin metal welds. I still have this setup and don't think I want to go back to the standard 75/25 mix.

 

[yomax4]

I have a mixer and I agree. Nice to dial a mix.

 

[Bday]

Ran my new miller today at the setting the book recomended for1/2". It was definitely a spray transfer, way hotter than what I usually like to run.

 

[Shield Arc]

Ran my new miller today at the setting the book recomended for1/2". It was definitely a spray transfer, way hotter than what I usually like to run.

:laughing:

 

[Bday]

:laughing:

I know it takes so long to upload pics. I make my wife do it and she gets mad. I'll get a pic and try to get it here tonight.

 

[Shield Arc]

No big deal, I'm just having fun with you!

 

[Bday]

Got your pics shield arc. First is the book setting. The second is a setting that is closer to what I prefer. I didn't add any movement to the book setting. The arc looked identical to and performed like spray transfer.

 

[Shield Arc]

Oh I like the second one too! The first one looks like it has a slight bit of undercut on the top toe. Or do you think you travel speed was to fast on the first one?

 

[Bday]

Oh I like the second one too! The first one looks like it has a slight bit of undercut on the top toe. Or do you think you travel speed was to fast on the first one?

There was some undercut at the end. I didn't stay in the puddle long enough. The rest of weld, wetted in pretty well. I'll try the setting with some movement tomorrow. Still like cooler settings. I was in a hurry, ran out to the shop in shorts and my wife's crocs to weld and get some pics!!!!

 

[Shield Arc]

I think all these settings in books, and calculators are fine. But I can't tell you how many wire feed tests I've taken when I walked into the testing booth there was duct tape over all the gauges! First part of the test, is to see if you're capable of setting the machine to the wire manufacturer's specifications. If not, you don't even get to take the test, you go home right there!

 

[Bday]

I think all these settings in books, and calculators are fine. But I can't tell you how many wire feed tests I've taken when I walked into the testing booth there was duct tape over all the gauges! First part of the test, is to see if you're capable of setting the machine to the wire manufacturer's specifications. If not, you don't even get to take the test, you go home right there!

The tests I've taken the tech sets the machine to specified weld settings. I couldn't touch the machine. If you did, you were failed.

 

[Shield Arc]

The tests I've taken the tech sets the machine to specified weld settings. I couldn't touch the machine. If you did, you were failed.

Really?!:shocked: That is strange! I think I'd have to slap his hands for touching my machine!:laughing: